The word directsum is not a valid scrabble word

3 short excerpts of WikWik.org (WikWik is an online database of words defined in the English, French, Spanish, Italian, and other Wiktionnaries.)

  • direct␣sum n. (Mathematics) coproduct in some categories, like abelian groups, topological spaces or modules.
  • direct␣sum n. (Linear algebra) A linear sum in which the intersection of the summands has dimension zero. Equivalently…
  • direct␣sum n. (Linear algebra) A block diagonal matrix interpreted as having its non-zero blocks (which are square…

35 valid words from 3 definitions

ABELIAN ALGEBRA ARE AS BLOCK BLOCKS CATEGORIES COPRODUCT DIAGONAL DIMENSION EQUIVALENTLY GROUPS HAS HAVING IN INTERPRETED INTERSECTION ITS LIKE LINEAR MATHEMATICS MATRIX MODULES NON OF OR SOME SPACES SQUARE SUM SUMMANDS THE TOPOLOGICAL WHICH ZERO

9 words-in-word (Words found as is inside the word.)

DI DIRE DIRECT DIRECTS IRE RE REC SUM UM

8 words-in-word RTL (Words found written from right to left, inside the word.)

ER ID MU MUS MUST RID ST US

One anagram plus one (New word formed with all the letters from the word plus a letter.)

+P SPERMIDUCT

5 anagrams minus one (New words formed with all the letters from the word minus a letter.)

-C DIESTRUM
-M CRUDIEST CRUDITES CURDIEST CURTSIED

Scrabble scoring

  • Zero, invalid.
  • 14 points, without game rules.

Other languages

Categories without words

  • No anagrams (Word found by changing the order of the letters.)
  • No cousins (Word found by changing only one letter.)
  • No lipograms (Word found when removing only one letter.)
  • No epentheses (Word found when adding only one letter.)
  • No suffixes (Word found by adding one or more letters at the end of the word.)
  • Not found in the middle (Word found by adding letters in front and at the end of the word.)
  • No prefixes (Word found by adding one or more letters in front of the word.)

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.

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